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GM still sells the
143 cam...it's actually a blueprint cam made by Crane, but last I checked it was cheaper from the GM dealer. Skip the Comp unit and go with the GM/Crane unit, trust me...all blueprint cams are NOT the same, and this thing has proved itself on the track and the dyno...
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No longer available through GM and none in stock in the US. However it is still made by Crane with grind # 3863143, you can order from Summit Racing or others.
-Sam